Code.SetSourceSets of codes.
Note. These signatures are the same as those from Stdlib.Set.S but we restrict access to the module in case we want to switch to something less heavy weight for sets of two or three elements.
The type for sets of codes.
min_elt s is the minimal element in s note that if Byte is in s then this is Byte.
fold f s acc folds f over the elements of s starting with acc.
pp formats sets.
pp_human is a sentence of the form "codes a, b, c"